Watch-movement.



E. A. LUNDVALL WATCH MOVEMENT.

APPLICATION FILED saw. 1912.

Patented Jan. 13. 191-1 WIT/V58 ES AVAILABLE COPY ERIK A. LUNDVALL,or'mnsnr CITY, NEW JERSEY, ASSIGNOR TO THE KEYSTONE WATCH CASE COMPANY,OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

WATCH-MOVEMENT.

Specification of Letters Patent.

Patent ed Jan. 13, .1 914.

Application filed September 9, 1912. Serial No. 719,326.

To all whom it may concern:

Be it known thatI, ERIK A. LUNDVALL, a citizen of the United States, anda resident of J erse City, in the county of Hudson and State 0 NewJersey, have made and invented certain new and useful Improvements inVt. tell-Movements, of which the following is a specification.

My invention relates to an improvement in watch movements, and moreparticularly to thatstyle or type commonly known and referred to as stemwinding and setting movements, the invention being directed to themechanism for holding the several parts in their winding and settingadjustments, the object thereof being to provide means for accomplishingthis end which shall be simple and cheap to construct, effective inoperation, and easily, readily and quickly assembled.

A further object of the invention is to provide a single piece spring,which will effectually operate to hold the pendant and shipping leversin their several adjustments or positions, and with theseand other endsin view the invention consists in certain novel features of constructionand combinations of parts as will be hereinafter fully described andpointed out in the claims.

In the accompanying drawings: Figure 1 is a view of a part of a watchmovement showing the several parts in their proper relative positionsfor setting the movement;

Fig. 2 is a view thereof showing the several parts in position forwinding the movement.

lleferflng to the drawings, 3 represents the dial plate with which isassociated the winding arbor l, having mounted thereon the windingpinion 5 and clutch (i, the latter being provided with ran-he teeth 7 atits upper end, and teeth 8 at its lower end. to

, engage respectively the teeth on the winding pinion 5 and the settingpinion t), the clutch being provided with a circunifercntial groove 10;all of these parts are constructed and arranged and operateTin the usualway, and form no part of the pres nt imcntion.

To the dial plate 3 is pivoted at it the pendant lever 12, this leverbeing soon-what Z shaped, the one end 12) engaging the winding stem orarbor, and the other extreme end being prt lcrably rounded asillustrated at l-t, to engage with the ocndant lever spring, ashereinafter describci the pivot ll being located at one of the angles ofthe lever, the

, angle other angle 15 of the lever being formed or shaped to ride andrest upon the shipping lever 16, when the several parts are in thesetting position as illustrated in Fig. 1. This shipping lever 16 ispivoted at 17 to the dial plate 8, the longer arm thereof engaging inthe circumferential gi'oove l0 of the clutch, and the shorter armengaging Willi the pendant lever spring, whereby the clutch 6 will beraised into the normal or winding position, as illustrated in- Fig. 2,as will be hereinafter more particularly described.

The shipping lever 16, on its longer arm, is provided with a cam orinclined face 18, and flat shoulder 1.9, with which engages the- 15 ofthe pendant lever 12 when the parts setting position, the angle of thelever 12 riding up the inclined face 18 and over and upon the shoulder19' as illustrated in Fig. l. the parts being held in this position bymeans of the pendant lever spring hereinafter referred to.

To the dial plate 3 issecured a pendant lever spring by means of a screw20, this spring being preferably made of wire and shaped as illustrated,that is formed with an arm 21, the. extreme end 22 of which bearsagainst the shorter arm 23 of the shipping lever 16, the opposite end ofthe arm being looped as illustrated at 24, the tendency of the arm 21being to lower the shorter arm 23 of the shipping lever 10 and to raisethe longer arm, whereby to normally hold the. clutch (3 in engagementwith the winding pinion 5. Beyond the retaining screw 20 is located theother arm ll of the spring bearing against a stud 2.": formed on orsecured to the dial plate 3, the end of this arm being curved asillustrated at 26, the extreme end 37 thereof bearing against the flange'28 of the dial plate 3. and the curved p rtion 2o hearing or impingingagainst the rounded end lei of the pendant lever 12.

When the winding stem or arbor is in its normal or winding position, asillustrated in i ig. the curved portion 26 of the spring EZ-l will holdthe end ll of the pendant lover 'l'l against the llauge of the plate thearm )1 of the spring bearing on iho end 3 1 oi th shipping lever,tending to hold the clutch ti in engagement with the winding pinion 5.\Vhcn. however, the winding stem or arbor is pulled outwardly areshifted from the winding to the illustrated in Fig. 1, the angle ofpendant lever 12 will ride up the ind' face 18 of the shipping lever,forcthat respective end of the latter downwardly, until said pendantlever rests upon the shoulder 19, and forcing the clutch 6 downwardlyinto engagement with the setting pinion 9, a tension being placed on thearm 21 of the spring. At the same time the rounded end 14 of the pendantlever 12 is pressed inwardly or in a direction away from the pivot 11 bythe curved portion 26 of the spring, until said rounded end 1.4 occupiesa position on the opposite side of the center of the loop of the spring,the tendency of this loop or curved portion of the spring being to holdthe pendant lever in engagement With the shipping lever, and the partsin their setting position. When the winding stem or arbor is then pushedinwardly, the rounded end 14 of the pendant lever carried oil' of theshoulder 19 of the shipping lever, andthe rounded end 14: thereof heldagainst the flange 28 of the dial. plate 3, the tension of the spring 21lowering the arm 52? of the shipping lever, and raising the opposite enduntil the clutch again engages the winding pinion 5, as illustrated inFig. 2.

From the foregoing it will beseen that the one spring, made of a singlepiece of round wire, operates to hold both the pendant and shippinglevers in their respective positions, that is in their Winding andsetting positions, and in practice operates to change the positions ofthe levers with a positive click.

The parts so construoted and arranged are cheap to manufacture and maybe easily and readily assembled.

What I claim is:

-1. i In a watch movement, the combination fivith a dial plate formedwith a peripheral flange, of a pendant lever pivoted tosaid plate, ashipping lever pivoted to said dial plate, and a spring secured to thedial pl. F constructed of a single piece or ra d", one arm of saidspring bearing against d pivoted to the dial plate, a spring constructedof a single piece of metal and secured about midway its length to saiddial plate, one end of said spring bearing against one end of theshipping lever, and the other end of said spring being bent into theformof a loop, the extreme end of which bears against the peripheralflange on the dial plate, the looped portion of the spring bearingagainst one end of the pendant lever, substantially as described. 1

3. In a watch movement, the combination with a dial plate formed with aperipheral flange, of a pendant and shipping lever, each pivoted to thedial plate, a spring constructed of a single piece of wire and securedabout midway its length to said dial plate, the end of one arm of saidspring engaging one end of said shipping lever, the opposite end of thespring being bent into the form of a loop, the extreme end of whichbears against the peripheral flange on the dial plate, said pendantlever having the extreme end of one of its arms engaging the loopedportion of the spring, and a pin secured to said dial plate and againstwhich rests the springbetween the looped end thereof and the point whereit is secured to the dial plate, substantially as described.

Signed at Jersey Citv, in the county of Hudson, ar f aw Jersey, this 6

